I want a night cap for max. $5.00

Hi, I am looking for a old fashioned night cap or sleeping cap. I tried making one from a bandanna with mixed results (not wrinkle free when washed ) I don't want a pom pom on it, just a triangle shape or even a triangle with the top squared off, to keep my head warmer in the Winter. I don't need a heavy one. I am wondering why these are so hard to find? I could see making them as a joke gift, say with negative signs on one for a very negative person, or plus signs for the more up beat. People who are going through kemo for cancer could really use these. Please consider the idea or pass it to some body you think would like doing this.